An official website of the United States government
Here's how you know
Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
HPLC-UV trace (gray) overlaid by 14C-AMS trace (black lines) for wild type yeast grown in 14C-nicotinic acid. Only metabolites associated with the NAD salvage pathway are labeled by 14C from nicotinic acid. Specific pathway labeling provides simpler AMS traces with fewer labeled peaks.